So, my friend just asked me to bring his grandfather's WWII leather bomber jacket back to life. The sleeves are dried out and the rest of the jacket doesn't seem too far behind them. Someone recommended Dr. Jackson's hide rejuvenator. Any recommendations? Also, there is a hand painted back piece. A pinup girl dropping a bomb on a bunch of swastikas! I'm so stoked about the jacket, and definitely wanna do the best job I can. Please let me know what you think would be the best product to use in bringing some new life into this piece of history. Thanks!